The Crescent 2 Piece 4" Reversible Nutsetter Set, part CAVRN4DHX-2. It has a reversible design, 2 pieces. Supplier specification: NUTSETTER 4" REVERSIBLE 2PK.
Nutsetters drive hex-head fasteners from a drill or impact driver. Match the socket to the head across the flats, and take the shortest length that reaches — a longer nutsetter flexes and cams off the head, which rounds it.
